Manuals or other information for system users detailing software features and functionality.

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2
votes
3answers
49 views

Find command associated with configuration file

Let's say I didn't know what ~/.bashrc is for. Is there a command that would tell me what the file is/does? Other than googling for an answer. The man pages have a files section, maybe there is a way ...
2
votes
1answer
14 views

How to refresh file list in moc?

In moc (music on console), I want to refresh the file list, because I have renamed all files to lowercase and moc still shows uppercase for all files that begin with a number. The help command (h) ...
0
votes
0answers
16 views

WiFislax documentation in English

Is there any User Guide or Documentation for WiFislax in English or Bulgarian. Or some YouTube channel or some tutorial in English.
3
votes
2answers
2k views

Where are the command-line options to perl documented?

On StackExchange I came across a command that looked like this: perl -pe ... Curious what the -pe options meant, I did man perl. This is the synopsis of that man page: perl [ -sTtuUWX ] [ ...
1
vote
1answer
20 views

How do I specify command invocation for a mandatory short or long option?

I'm writing a specification for a tool that needs a -f / --foo option with a mandatory argument BAR, so for example these are valid calls: tool -f BAR tool --foo BAR How do I specify this syntax in ...
6
votes
2answers
511 views

Where can I find official POSIX and UNIX documentation?

I am looking for official documents on all POSIX standards and specifications. I would like to be able t read the docs to get a better understanding of UNIX systems and how they work at a low level. ...
5
votes
2answers
259 views

How do I look up exit codes for applications?

I'm having difficulty locating a comprehensive up-to-date list of error codes from Bash. e.g.: $ udevadm info /dev/sdx; echo Exit code $? Unknown device, --name=, --path=, or absolute path in /dev/ ...
1
vote
2answers
215 views

What do square brackets in bash case statement mean?

http://ss64.com/bash/case.html SHOWS case word in [ [(] pattern [| pattern]...) command-list ;;]... esac What are square brackets indicating? Other websites omit them (i.e. no [[(] etc.) ...
23
votes
4answers
1k views

How can I add man page entries for my own power tools?

I have no idea about how I can make my home-grown specialist scripts (written mostly in Bash and Perl) available through the man pages. What procedure would I have to follow, and is there a ...
3
votes
1answer
28 views

How to create Info documentation?

How can I add man page entries for my own power tools? got me thinking: How would one create an Info page?
25
votes
19answers
5k views

Tricks and tips for finding information in man pages

Does anyone have any tricks and tips for finding information in man pages?
0
votes
0answers
18 views

Find out which arguments an application supports

I have iOS Simulator.app on Mac. Is there a way to find out what arguments can be passed to the app through the command line?
11
votes
3answers
3k views

Difference between help, info and man command

I know that these command will help to get syntax and options for commands but my question is that how they differ from each other?
0
votes
3answers
401 views

In the command tar –cvjf foo.tbz a b c, what are a, b, and c?

I know these aren't extra flags to be passed to the tar command, aren't they just files names to be added to the archive?
2
votes
1answer
43 views

Where is using @ before a date string for seconds since the epoch documented?

GNU date and touch commands (and presumably others) use @date to define a date string as seconds since the epoch. For example: $ TZ=UTC date -d@10 Thu Jan 1 00:00:10 UTC 1970 I was answering a ...
1
vote
2answers
90 views

man pages: meaning of '2' in STAT(2)? [duplicate]

What's the significance of the number, like the 2 in STAT(2), seen in man pages? For example, man 2 stat yields a man page with STAT(2) at the top and a description that begins, The stat() ...
1
vote
3answers
263 views

How to install/make the kernel section 9 manpages which document its functions and data structures?

The kernel sources contain functions and data structures which are documented, for instance in panic.c: /** * panic - halt the system * @fmt: The text string to print * * Display a message, ...
1
vote
1answer
369 views

Understand `compgen` builtin command

From help compgen: $ help compgen compgen: compgen [-abcdefgjksuv] [-o option] [-A action] [-G globpat] [-W wordlist] [-F function] [-C command] [-X filterpat] [-P prefix] [-S suffix] [word] ...
2
votes
1answer
26 views

Force installation of doc packages

I often find myself missing documentation when I happen to be offline. For this reason, I would like to force aptitude to install the corresponding doc packages whenever I install a package. Is there ...
10
votes
2answers
648 views

How to document my custom bash functions and aliases?

Problem: I have multiple bash functions and aliases. I can't remember all of them off the top of my head, so I usually end up opening my .bash_functions and .bash_aliases files to find what I need. ...
3
votes
3answers
1k views

Where is “showing the output of the 'ls' command vertically” documented?

I found out it's possible to show the output of the ls command vertically using the -1 switch: $ ls -1 But couldn't find it in the manual of ls. Is it a secret option?
3
votes
3answers
177 views

Interactive command usage reference: do you generally have that on Unix?

The question of why some commands rely on manpages whereas others rely on something like the --help flag for providing command usage reference is not new. There is usually a difference in scope ...
11
votes
6answers
5k views

What are good online resources for learning shell scripting? [closed]

I am a beginner to shell scripting. I have not yet hardly coded a single program, but I am interested in learning it completely. Can anyone suggest some good online resources which will guide me?
3
votes
1answer
54 views

Is there a man section or other doc repository for data structure definitions?

For the millionth time or so I had to look in /usr/include/foo.h to find the members of a struct foo or foo_t or whatever. There's a man section for library and kernel calls, some of which include ...
2
votes
1answer
613 views

Where is the documentation for net.ipv4.conf.all.log_martians?

Where is the documentation for net.ipv4.conf.all.log_martians sysctl setting? There are man pages for various other TCP/IP/UDP (man 7 tcp, man 7 upd, man 7 ip) settings, but I cant find the ...
3
votes
1answer
114 views

Reading Ubuntu installed magazines

I installed a digital edition of a magazine from the Ubuntu Software Center. But how do I read it? Is there an accessory tool to access it?
1
vote
0answers
46 views

Learning to use ksh88 in HP-UX [closed]

I am just a plain Linux user who played some distros since 2-3 years. Now, in the company I work there's an HP-UX server. And when I get connected to it I really felt myself like a grandma seeing ...
4
votes
1answer
55 views

POSIX usage standards for requiring at least one optional arg

So, I'm writing a CLI for an API, and I ran into a point where one of the commands support has two optional arguments, id and fields I want to know how to show that these arguments are optional, BUT, ...
0
votes
2answers
38 views

Where can I view a changelog for the sort command

I need to find sort's version when the -V flag was introduced. But I am finding myself some hard time finding the changelog for this command. Where can I view it?
2
votes
1answer
19 views

Correct way to document variable length options in man pages

Sometimes I see usage information like some_utility [arg [arg [...]]] or some_utility [arg[, arg[...]]] that indicates that you can pass more than one of the same argument. I've also seen it ...
3
votes
1answer
375 views

Where do I find ioctl EVIOCGRAB documented?

I want to use the ioctl EVIOCGRAB function in a C based program, and from googling around I have found various bits of example source code that use the function, but I am struggling to find explicit ...
3
votes
3answers
511 views

if/then/else man page

I would like to know if there is any man page documenting the construction of the most basic script commands like if/then/else, while, for each, and all the relative switches, like -eq, -e, -ge, and ...
6
votes
2answers
675 views

viewing info documentation with vim

I'm trying to use the ManPageView addon to view info documentation within vim. Although I find ManPageView very useful for, well, viewing manpages, its info-reading functionality doesn't seem to work ...
0
votes
2answers
197 views

Where are netstat's -t and -u flags documented?

I use the following command to find open ports on my servers: $ netstat -ntulp I've probably found that on some random website over the years. However, I cannot find where -t or -u are documented. ...
0
votes
2answers
467 views

How do I get the list of exit codes (and/or return codes) and meaning for a command/utility?

Is there a way I can do what stated in the title from the terminal commands, or will I have to look into the codes?
16
votes
3answers
705 views

Documentation: Architecture of Linux Session

I'm looking for a good overview documentation describing the the stack of daemons and services involved in a modern Linux session. Although having read various documentation about dbus, and systemd ...
1
vote
1answer
64 views

Why there is no Linux Handbook?

Look e.g. onto the BSD's family: FreeBSD Handbook: http://www.freebsd.org/doc/en/books/developers-handbook/debugging.html OpenBSD FAQ, nearby FreeBSD's Handbook: ...
6
votes
1answer
111 views

List of error messages available for a command in Unix

Is it possible to find out what error messages a command includes? For example I want to see the list of error messages that mkfs.ext3 command will print in different error situations. Shall I look ...
2
votes
2answers
926 views

where does lspci gather its information from?

In kernel.org's documentation on proc I found "[The latest version of this document is available online". There I says: "… lspci is a synonym for cat /proc/pci". Which isn't the ...
2
votes
1answer
1k views

Where are the CentOS 6.4 documents?

I'm only able to find up to version 5 on CentOS.com: http://www.centos.org/docs/ Even though CentOS 6 was released back in mid-2011..
2
votes
3answers
76 views

Is there html documentation finder/searcher, like info utility for info files?

Many packages have their documentation in html. Is there some sort of man or info utility to find locally installed html documentation and work with it? I mean, I need a program which would ...
1
vote
3answers
126 views

Is there any manual about C in Linux? If any, what is it?

While I find that we can read some manuals about Library calls (C library functions) & acsii in Linux. But I still do not find any manual about C precedence order so far. So you can recommend ...
5
votes
1answer
90 views

Where would I start looking for documentation on the graphical mode of the Linux console?

I'm writing my own display server as an educational exercise. Where in the Linux kernel tree would I look for documentation on the console's graphical mode? Basically, as I understand it, Xorg takes ...
1
vote
2answers
351 views

Is the Unix Programmers Manual relevant for Linux?

I've been looking for an all around Linux Programmers manual but there isn't one... So that leads me to ask if the Unix Programmers Manual is relevant for Linux? The manual is here: ...
2
votes
1answer
474 views

Is there some kind of “patterns” when coding bash scripts? [closed]

In Java, we have Javadoc and some different styles when programming. In Python, there's pep8. I'm creating some bash scripts for my own use, and would like to know from you, experienced bash users, ...
6
votes
4answers
2k views

Any good LVM tutorial?

I'm planning to user LVM in my next Linux installation, any links to good LVM tutorials/guides/FAQs would be welcomed.
2
votes
0answers
56 views

Linux kernel API changes/additions

I'm trying to find a webpage or docs or XYZ that will allow me to see all the API changes/additions/removals between two kernel versions. I found http://kernelnewbies.org/LinuxChanges, but I'm not ...
11
votes
2answers
2k views

Does `kill -p` really work?

In the man page of kill it is written as following SYNOPSIS kill [ -s signal | -p ] [ -a ] [ -- ] pid ... kill -l [ signal ] -p Specify that kill should only print the process id ...
2
votes
2answers
544 views

What does the `who` command result `root :0` mean?

The return value of command who will always include root :0 in X Window pts. I guess it actually means the GNOME login. Am I right? Another question is where to get this knowledge, as I don't see it ...
0
votes
1answer
256 views

command --help vs man command [duplicate]

What is the difference between invoking the help using a --help key compared to invoking a "man command"? When should I choose one over another.